Our selection criteria in this study included a patient with PDN in a scarred wound bed or
poor coverage, a PDN located between the middle of the distal phalanx and the palmar digital
crease, and a defect of the digital nerve after neuroma resection equal to or less than 3 cm
in length. The exclusion criteria included a PDN in healthy soft tissue, a digital nerve
defect longer than 3 cm, injury to the course of the pedicle or the donor nerve, and a thumb
neuroma. A finger with a small distal end of the digital nerve was also excluded, because
neurorrhaphy was extremely difficult in this situation.
Endpoint Classification: Efficacy Study, Intervention Model: Single Group Assignment, Masking: Single Blind (Subject), Primary Purpose: Treatment
static 2-point discrimination test
The test points were at the center of the radial or ulnar portion of the finger pulp (i.e., injury side) and the donor site separately. The modified American Society for Surgery of the Hand guidelines was used to stratify the 2PD measurements (excellent <6 mm; good 6-10 mm; fair 11-15 mm; poor >15 mm) .
20-26 months postoperatively
Gang Zhao, MD.
The Second Hospital of Tangshan
United States: Food and Drug Administration